A362762 Number of nonisomorphic multisets of derangements of an n-set with n derangements.

1, 0, 1, 2, 43, 14337, 706921410, 2997923196044931, 1444144328636895497029515, 102283439767915808465814602082093471, 1365131086334878921752089363480972733171373474663, 4296984259821021241778301305720225516826609689764873566360067437

Offset

0,4

Comments

Isomorphism is up to permutation of the elements of the n-set.

Links

Andrew Howroyd, Table of n, a(n) for n = 0..30

Crossrefs

Main diagonal of A362759.

Cf. A362647.

Sequence in context: A375620 A088466 A357279 * A177490 A203498 A156478

Adjacent sequences: A362759 A362760 A362761 * A362763 A362764 A362765

Keyword

nonn

Author

Andrew Howroyd, May 03 2023

Status

approved